Frequently Asked Questions (FAQ)

HLJH - a professional manufacturer and supplier of cutting oil in Taiwan.


Knowledge ( Q&A )

HAI LU JYA HE Co., Ltd. (HLJH), we are a manufacturer and a supplier of industrial lubricants. We have been focusing on manufacturing and marketing the industrial lubricants more than 30 years.

Therefore, we are going to sharing our experienced and frequently questions for your reference, like「What causes FOAMING COOLANT?」「How to Select the Right Hydraulic Oil」, and so on. These articles are useful and helpful for metal processing. For sure, if you have any unclear or any questions, please feel free to contact us or email to us.

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As a manufacturer and supplier of cutting fluids, there are many details should be noticed while metalworking processing. The articles as below are our know-how and experienced for your reference. It may solve the problems which you are facing with it, and even can help you extend coolant and tool life. Read More
Industrial oils (such as slideway oil, hydraulic oil and rust preventive oil, etc.) are mostly used to lessen the wear and tear of material while reducing binding and friction. And, it can prevent corrosion from both inner and outer surfaces. Read More
Product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications (typically called "certification schemes" in the product certification industry). To protect customer benefit and control product security, product certification is nessary. There are a few certifications which HAI LU JYA HE CO., LTD have, like RoHs, Reach, TGRS. Read More
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